4–8 Component Test Procedures
Publication 1336 IMPACT-6.2 – March 1998
Power Modules PM1 – PM3 are located near the center of the heat
sink.
Figure 4.3
Power Module Test
E2
B2
E1
B1
C1
E2
C2E1
AB0330A
!
ATTENTION: Disconnect and lock out power from
the drive before disassembling the drive. Failure to
disconnect power may result in death or serious injury.
Verify bus voltage by measuring the voltage between
+DC and –DC on terminal block TB1. Do not attempt
to service the drive until the bus voltage has discharged
to zero volts.
Important: Before you remove connections and wires from the
drive components, mark the connections and wires to
correspond with their component connections and
terminals to prevent incorrect wiring during assembly.
Test 3 – Testing Power
Modules PM1 – PM3
AB Spares
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